/*
 * Unidata Platform
 * Copyright (c) 2013-2020, UNIDATA LLC, All rights reserved.
 *
 * Commercial License
 * This version of Unidata Platform is licensed commercially and is the appropriate option for the vast majority of use cases.
 *
 * Please see the Unidata Licensing page at: https://unidata-platform.com/license/
 * For clarification or additional options, please contact: info@unidata-platform.com
 * -------
 * Disclaimer:
 * -------
 * THIS SOFTWARE IS DISTRIBUTED "AS-IS" WITHOUT ANY WARRANTIES, CONDITIONS AND
 * REPRESENTATIONS WHETHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE
 * IMPLIED WARRANTIES AND CONDITIONS OF MERCHANTABILITY, MERCHANTABLE QUALITY,
 * FITNESS FOR A PARTICULAR PURPOSE, DURABILITY, NON-INFRINGEMENT, PERFORMANCE AND
 * THOSE ARISING BY STATUTE OR FROM CUSTOM OR USAGE OF TRADE OR COURSE OF DEALING.
 */
package org.unidata.mdm.job.reindex.service.impl;

import java.util.Collections;
import java.util.Map;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.batch.core.configuration.annotation.JobScope;
import org.springframework.batch.item.ExecutionContext;
import org.springframework.beans.factory.annotation.Value;
import org.unidata.mdm.job.reindex.configuration.ReindexJobConfigurationConstants;

/**
 * @author Mikhail Mikhailov
 * Update data mapping partitioner.
 */
@JobScope
public class ReindexDataJobMappingPartitioner extends ReindexDataJobAbstractMappingPartitioner {
    /**
     * Logger
     */
    private static final Logger LOGGER = LoggerFactory.getLogger(ReindexDataJobMappingPartitioner.class);
    /**
     * Comma separated reindex types.
     */
    @Value("#{jobParameters[" + ReindexJobConfigurationConstants.PARAM_UPDATE_MAPPINGS + "] ?: false}")
    private boolean updateMappings;
    /**
     * Comma separated reindex types.
     */
    @Value("#{jobParameters[" + ReindexJobConfigurationConstants.PARAM_CLEAN_INDEXES + "] ?: false}")
    private boolean cleanIndexes;
    /**
     * Constructor.
     */
    public ReindexDataJobMappingPartitioner() {
        super();
    }
    /**
     * {@inheritDoc}
     */
    @Override
    public Map<String, ExecutionContext> partition(int gridSize) {

        if (!updateMappings && !cleanIndexes) {
            LOGGER.info("No mapping update nor index clean required. Mapping step is skipped.");
            return Collections.emptyMap();
        }

        return super.partition(gridSize);
    }
}
